I remember having these a long time ago, and I'm glad I could find them again. There are simply awesome. This is a pack of 13 brand new weapons, models and skins, and it is in a mutator so you still keep the default guns as well. If you want to use these, install them and turn on the mutator like you would any other. You can see a complete list of the weapons, how they work and what they do in the Readme.
This took about a year to make.